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Factory mode (factory) Definition: a utility class that creates an instance of a derived class Abstract Factory Definition: a utility class that creates an instance of a derived class. You can also create an instance of a factory. The factory pattern is useful when you need to create many different types of objects that derive from a common ...

brief introduction In JAVA, the agent mode is widely used and is often used in many frameworks or ordinary business. In fact, there is no mystery about the dynamic agent. As long as you understand the static agent, you can understand the dynamic agent immediately after in-depth thinking. Static proxy The proxy class generally has a common int ...

Author: York zhou preface According to the general demand development process, this article will explain * * * an effective scheme of "obtaining real-time audio stream while playing video on Android devices" from demand, analysis, development to summary. demand In car products, there is such a demand. For example, I connect my A ...

1. Introduction I often hear my colleagues say that they have used the responsibility chain model in the project. Today, let's learn what the responsibility chain model is. Chain of Responsibility is a kind of design pattern, which belongs to behavioral design pattern. As the name suggests, the responsibility chain pattern creates a chain fo ...

Experiment 1: engineering method and abstract factory pattern Experimental topic The process of producing clothes in a garment factory is simulated by using the factory method and abstract factory mode. The specific contents are as follows: There are three kinds of jackets of brands A, B and C, which use simple factory mode and factory m ...

Single column design mode Design rules of singleton mode: 1. Constructor privatization 2. Create an instance inside a class 3. Provide a static method to get an instance Although there are many implementation methods of singleton mode, all methods comply with these three rules! Advantages of singleton mode: 1. Ensure that there is o ...

Classification of design patterns Generally speaking, design patterns are divided into three categories: There are five kinds of creation mode: factory method mode, abstract factory mode, singleton mode, builder mode and prototype mode. There are seven structural modes: adapter mode, decorator mode, agent mode, appearance mode, ...

Responsibility chain model Chain of responsibility pattern: a chain of receiver objects is created for the request. This mode gives the type of request and decouples the sender and receiver of the request. This type of design pattern belongs to behavioral pattern. The above explanation is very obscure. To put it bluntly, I just can't understa ...

1, Factory mode understanding How to understand the factory model? Simply put, it is to transfer the creation process of the class to the factory class. If the initialization of our classes is complex, or there are implementations of different classes, we can consider using factory mode. Factory, as the name suggests, is a place for production ...

1, Foreword Requirements: a testing framework is needed to test an IM} system and adapt to the current business logic. Testing uses Jmeter. Jmeter can also test websocket. Why develop a testing framework yourself? The most important point: TCP # protocol is user-defined. It cannot be well integrated with # Jmeter # and other frameworks. P ...